Hi ,
I am running aarch32 app in ARMv8a( cortex-a57 ) device. The performance reports ( using gettimeofday() utility ), showing large spikes on random calls. But the same app on ARMv7a( cortex-a15 ) device is quite stable.
Will the aarch32 library and aarch64 OS switching effect the performance ?. Thanks in advance.
Will the aarch32 library and aarch64 OS switching effect the performance?
No, there really shouldn't be any issues here - especially not spikes. Are you sure the platform DVFS isn't messing with your timings due to changing CPU or bus frequencies?
Cheers, Pete
How changing CPU will effect timings( I have tried to use single core , Locking the CPU on android for app performance testing - Stack Overflow )?. Still spikes are present ( but number spikes reduced by a good amount ). Could you please share more details?. Thanks!
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